HarmonyOS promptAction的buttons如何动态传值？

class UserButton implements promptAction.Button {  
  text: string | Resource;  
  color: string | Resource;  
  
  constructor(text: string | Resource, color?: string | Resource) {  
    this.text = text  
    this.color = color ?? '#000000'  
  }  
}  
  
function createDia(buttonStr: string[]) {  
  let buttons: [  
    promptAction.Button,  
    promptAction.Button?,  
    promptAction.Button?,  
    promptAction.Button?,  
    promptAction.Button?,  
    promptAction.Button?  
  ] = [new UserButton(buttonStr[0])]  
  let len = buttonStr.length > buttons.length ? buttons.length : buttonStr.length  
  for (let i = 1; i < len; i++) {  
    buttons[i] = new UserButton(buttonStr[i])  
  }  
  if (len) {  
    try {  
      promptAction.showActionMenu({  
        title: 'Title Info',  
        buttons: buttons,  
      })  
        .then(data => {  
          console.info('showDialog success, click button: ' + data.index);  
        })  
        .catch((err: Error) => {  
          console.info('showDialog error: ' + err);  
        })  
    } catch (error) {  
      console.error(`showDialog args error code is ${error.code}, message is ${error.message}`);  
    }  
  }  
}